Joel Jones 9df72a93ef Fix a problem with incomplete equality testing of PHINodes in ...

Instruction::IsIdenticalToWhenDefined.

This manifested itself when inlining two calls to the same function.  The 
inlined function had a switch statement that returned one of a set of 
global variables.  Without this modification, the two phi instructions that 
chose values from the branches of the switch instruction inlined from the 
callee were considered equivalent and jump-threading replaced a load for the 
first switch value with a phi selecting from the second switch, thereby 
producing incorrect code.

This patch has been tested with "make check-all", "lnt runteste nt", and 
llvm self-hosted, and on the original program that had this problem, 
wireshark.

<rdar://problem/11025519>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156548 91177308-0d34-0410-b5e6-96231b3b80d8

2012-05-10 15:59:41 +00:00

..

AsmWriter.cpp

llvm::SwitchInst

2012-03-11 06:09:17 +00:00

Attributes.cpp

…

AutoUpgrade.cpp

change the objectsize intrinsic signature: add a 3rd parameter to denote the maximum runtime performance penalty that the user is willing to accept.

2012-05-09 15:52:43 +00:00

BasicBlock.cpp

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CMakeLists.txt

Fix up cmake build.

2012-03-23 03:55:14 +00:00

ConstantFold.cpp

Reapply r155682, making constant folding more consistent, with a fix to work

2012-04-27 17:50:22 +00:00

ConstantFold.h

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Constants.cpp

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ConstantsContext.h

Switch this code to use hash_combine_range rather than incremental calls

2012-03-07 03:22:32 +00:00

Core.cpp

Introduce llvm-c function LLVMPrintModuleToFile.

2012-05-09 16:54:17 +00:00

DebugLoc.cpp

Compute hashes directly with hash_combine instead of taking a detour through FoldingSetNodeID.

2012-04-11 14:06:39 +00:00

Dominators.cpp

Def here is an Instruction, so !isa<Instruction>(Def) is always false,

2012-04-13 00:50:57 +00:00

Function.cpp

Emit the "is an intrinsic overloaded" table as a bitfield.

2012-03-01 02:16:57 +00:00

GCOV.cpp

Remove extra semi-colons.

2012-02-22 17:25:00 +00:00

Globals.cpp

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GVMaterializer.cpp

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InlineAsm.cpp

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Instruction.cpp

Fix a problem with incomplete equality testing of PHINodes in

2012-05-10 15:59:41 +00:00

Instructions.cpp

Rejected r156374: Ordinary PR1255 patch. Due to clang-x86_64-debian-fnt buildbot failure.

2012-05-08 08:33:21 +00:00

IntrinsicInst.cpp

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IRBuilder.cpp

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LeakDetector.cpp

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LeaksContext.h

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LLVMBuild.txt

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LLVMContext.cpp

Rename "fpaccuracy" metadata to the more generic "fpmath". That's because I'm

2012-04-14 12:36:06 +00:00

LLVMContextImpl.cpp

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LLVMContextImpl.h

Cache the hash value of the operands in the MDNode.

2012-04-11 14:06:54 +00:00

Makefile

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Metadata.cpp

Don't forget to reset 'first operand' flag when we're setting the MDNodeOperand value.

2012-04-26 00:38:42 +00:00

Module.cpp

Cleanup whitespace.

2012-04-23 00:23:33 +00:00

Pass.cpp

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PassManager.cpp

Take out the debug info probe stuff. It's making some changes to

2012-03-23 03:54:05 +00:00

PassRegistry.cpp

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PrintModulePass.cpp

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SymbolTableListTraitsImpl.h

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Type.cpp

Revert r155241, which is causing some breakage.

2012-04-20 23:11:38 +00:00

Use.cpp

Add missing include of <new>

2012-03-26 14:04:17 +00:00

User.cpp

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Value.cpp

The MDString class stored a StringRef to the string which was already in a

2012-04-10 20:12:16 +00:00

ValueSymbolTable.cpp

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ValueTypes.cpp

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Verifier.cpp

Remove support for the special 'fast' value for fpmath accuracy for the moment.

2012-04-16 19:39:33 +00:00